/**
 * Copyright 2018 The AMP HTML Authors. All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS-IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import { registerSubclass, Element } from './Element';
import { HTMLElement } from './HTMLElement';
import { reflectProperties } from './enhanceElement';
import { matchChildrenElements } from './matchElements';

export class HTMLMapElement extends HTMLElement {
  /**
   * Getter returning area elements associated to this map.
   * @see https://developer.mozilla.org/en-US/docs/Web/API/HTMLMapElement
   * @return area elements associated to this map.
   */
  get areas(): Array<Element> {
    return matchChildrenElements(this as Element, (element) => element.tagName === 'AREA');
  }
}
registerSubclass('map', HTMLMapElement);

// Reflected Properties
// HTMLMapElement.name => string, reflected attribute
reflectProperties([{ name: [''] }], HTMLMapElement);
